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Debt Obligations (Tables) | 12 Months Ended
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Dec. 31, 2018
Debt Obligations |
Schedule of notes payable |
|  | As of December 31,
|  | 2018 |  | 2017
|  | (in thousands)
Credit facility at a floating rate of interest of one-month LIBOR plus 2.0% at December 31, 2018, secured by engines. The facility has a committed amount of $890.0 million at December 31, 2018, which revolves until the maturity date of April 2021 |  | $ | 427,000 |  | $ | 491,000
WEST IV Series A 2018 term notes payable at a fixed rate of interest of 4.75%, maturing in September 2043, secured by engines |  |  | 323,075 |  |  | —
WEST IV Series B 2018 term notes payable at a fixed rate of interest of 5.44%, maturing in September 2043, secured by engines |  |  | 46,154 |  |  | —
WEST III Series A 2017 term notes payable at a fixed rate of interest of 4.69%, maturing in August 2042, secured by engines |  |  | 274,205 |  |  | 289,295
WEST III Series B 2017 term notes payable at a fixed rate of interest of 6.36%, maturing in August 2042, secured by engines |  |  | 39,212 |  |  | 41,370
WEST II Series A 2012 term notes payable at a fixed rate of interest of 5.50%, maturing in September 2037, secured by engines |  |  | 237,847 |  |  | 259,022
Note payable at fixed interest rates ranging from 2.60% to 2.97%, maturing in July 2024, secured by a corporate aircraft |  |  | 10,937 |  |  | 12,720
Note payable at a variable interest rate of one-month LIBOR plus 2.25%, matured in January 2018, secured by engines |  |  | — |  |  | 10,336
|  |  | 1,358,430 |  |  | 1,103,743
Less: unamortized debt issuance costs |  |  | (21,081) |  |  | (18,338)
Total debt obligations |  | $ | 1,337,349 |  | $ | 1,085,405
Schedule or principal outstanding |
Year |  | (in thousands)
2019 |  | $ | 55,380
2020 |  |  | 54,980
2021 (includes $427.0 million outstanding on revolving credit facility) |  |  | 482,217
2022 (includes $173.8 million outstanding on WEST II Series A 2012 term notes) |  |  | 207,733
2023 |  |  | 34,008
Thereafter |  |  | 524,112
Total |  | $ | 1,358,430

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